Plastic storage box



FIG. 1 is a front, left side perspective view of a plastic storage boxshowing my new design;

FIG. 2 is a bottom, left side perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front elevation view thereof, the rear elevation beingidentical; and,

FIG. 6 is a side elevation view thereof, the opposite side beingidentical.

The ornamental design for a plastic storage box, as shown.